ROTOBASE^® is the innovative additive for all cement and lime building materials. ROTOBASE^® is a silicate rock powder, that is produced through special screening technologies and a treatment processes developed by ROTEC^®. ROTOBASE^® reacts with the calcium hydroxide liberated during the hydration of the cement and forms cement like C-S-H – phases (calcium silicate hydrates). ROTOBASE^® improves the properties of all mineral building materials such as plasters, mortars, concretes, tile adhesives and other construction chemical products.